It's thermalling away from an upwind turning point close to ground level,
Not
too close I hope...seen people come croppers doing that.
Sounds OK to me... even up to 4kts fast, I'd have thought?
Sounds OK to me too. I fly a 150 and my usual approach speed is 50 kts with the barn doors open, if it's a still day 45 kts for laughs.